SIST EN 1199:2005 PDF

Name: SIST EN 1199:2005 — Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate
SKU: SIST EN 1199:2005
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Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate

Название (английский):

SIST EN 1199:2005

Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 17
Дата публикации:: 1 июля 2005 г.
ICS:: 13.060.20
Технический комитет:: IOVO - Water supply and waste water engineering

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Описание (английский):

This document is applicable to disodium hydrogen orthophosphate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding test methods for disodium hydrogen orthophosphate. It gives information on its use in water treatment.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN 1199:2005 is the CEN (European) standard that specifies characteristics, purity requirements and test methods for disodium hydrogen orthophosphate (also known as sodium phosphate, dibasic) when used for the treatment of water intended for human consumption. The standard covers identification, commercial forms (solid and aqueous solution), physical/chemical properties, impurity limits, sampling and analytical test procedures, and guidance on labelling, transport and storage. It clarifies that national regulations and approvals remain applicable; conformity with EN 1199:2005 does not by itself guarantee legal acceptance in every Member State.

Key topics and technical requirements

Identification and composition

Chemical formula: Na2HPO4; relative molecular mass 142.0; CAS 7558-79-4.
Commercial forms: white powder/granules or clear solutions.

Physical properties

Solubility ≈ 80 g/L at 25 °C; bulk density 550–1 000 g/dm3; 50 g/L solution density ≈ 1.045 g/mL; pH of 1% solution ≈ 9.0–9.2.

Purity criteria and composition (dry mass basis)

Phosphate (expressed as P2O5): (50 ± 1.0) %
Sodium (expressed as Na2O): (43 ± 0.5) %

Impurity limits (mg/kg dry product)

Sulfate (SO4 2–): max 500
Fluoride (F–): max 10

Trace element limits (mg/kg)

Antimony, Arsenic, Cadmium, Selenium: max 3
Chromium, Lead, Nickel: max 10
Cyanide: max 5
Mercury: max 1

Test methods and sampling

Specifies sampling rules for solids and liquids (ISO 3165, ISO 8213, ISO 6206) and analytical methods for composition and impurities (referenced standards include EN 1483, EN ISO 3696, EN ISO 11885, EN ISO 11969, ISO 2997, ISO 3360, etc.).

Labelling, transport and storage

Provides requirements and recommendations for safe handling, labelling and storage appropriate to water treatment chemicals.

Applications and users

Intended for water utilities, municipal and industrial water treatment operators, chemical manufacturers and suppliers, analytical laboratories, regulatory bodies and consultants specifying or approving chemicals for drinking water treatment.

Typical uses: corrosion control, sequestration and pH buffering in potable water systems where disodium hydrogen orthophosphate is applied as part of treatment dosing.

SIST EN 1199:2005 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards and regulatory notes

Технические детали

EN 1199:2005

Chemicals used for treatment of water intended for human consumption - Disodium hydrogen orthophosphate

SIST ISO 3165:1995

Sampling of chemical products for industrial use -- Safety in sampling

SIST ISO 8213:1995

Chemical products for industrial use -- Sampling techniques -- Solid chemical products in the form of particl…

SIST ISO 6206:1995

Chemical products for industrial use -- Sampling -- Vocabulary

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

SIST EN ISO 11885:2009

Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometr…

BS EN ISO 11969:1996

Water quality. Determination of arsenic. Atomic absorption spectrometric method (hydride technique)

ISO 2997:1974

Phosphoric acid for industrial use — Determination of sulphate content — Method by reduction and titrimetry